on 13-09-2021 01:41 PM
I have had a crackling noise on my landline for several weeks.
A micro filter is fitted to the only phone socket that is in use.
Have tried with several handsets including a brand new one, the noise persists on all handsets.
on 14-09-2021 03:29 PM
Can you still hear the crackle with the router disconnected?
Have you tested with the telephone connected to your Test Socket if you have one?
How many telephone sockets do you have?